7种杀菌剂和避雨栽培对林下三七圆斑病的防治效果

圆斑病是三七生产上的一种重要毁灭性病害,为筛选防治三七圆斑病的有效防治措施,本研究评估分析了7种杀菌剂和避雨培栽对林下三七圆斑病防治效果估。结果显示,10%苯醚甲环唑水分散粒剂1500倍、430克/升戊唑醇悬浮剂4000倍、400克/升氟硅唑乳油8000倍、450克/升咪鲜胺乳油1500倍、80%代森锰锌可湿性粉剂600倍、60%唑醚.代森联水分散粒剂1000倍和30%肟菌.戊唑醇悬浮剂1000倍防治效果分别为89.26%、87.26%、86.30%、87.82%、78.80%、81.58%和85.66%,10%苯醚甲环唑水分散粒剂1500倍的防治效果最好,避雨栽培的防治效果最高可达86.66%,7种杀菌剂和避雨栽培对三七圆斑病均有不同程度的防治效果,对三七生长无不良影响,在生产上可以推广使用,研究结果为三七病害的有效防治奠定了科学基础。

Control effect of 7 fungicides and rain-sheltered cultivation on understory planted Panax notoginseng round spot

Round spot is an important destructive disease in (sanqi) Panax notoginseng production. In order to screen effective control measures for sanqi round spot, the control effects of seven fungicides and rain-shelter cultivation on understory planted sanqi round spot were evaluated and analyzed in this study. The results showed that the control effects of 10% difenoconazole water dispersible granules (WG) 1500×, 430 g/L tebuconazole suspension concentrate (SC) 4000×, 400 g/L flusilazole emulsifiable concentrate (EC) 8000×, 450 g/L prochloraz EC 1500×, 80% mancozeb wettable powder (WP) 600×, 60% pyraclostrobin.metiram WG 1000× and 30% trifloxystrobin . tebuconazole SC 1000× were 89.26%, 87.26%, 86.30%, 87.82%, 78.80%, 81.58% and 85.66%, respectively. The control effect of 10% Difenoconazole WG 1500× was the best, and the highest control effect of rain-shelter cultivation was 86.66%. 7 fungicides and rain-shelter cultivation had different control effects on sanqi round spot and had no adverse effects on the growth, which could be promoted and applied in sanqi production. The research results had laid a scientific foundation for the effective control of sanqi disease.